Fabricated underground engineering buffer layer support structure

Abstract

The present invention provides a fabricated underground engineering buffer layer support structure, comprising first structural plate, having a first surface and a second surface, and being connected to an initial support layer through the first surface; second structural plate, having a third surface and a fourth surface, and being connected to a secondary lining layer through the fourth surface; flexible energy dissipation component, being arranged in first buffering energy dissipation space formed between the second surface and the third surface and filled with first porous lightweight material that is arranged on a periphery of a wave-shaped plastic-material first plate in a wrapping manner. The flexible energy dissipation component is arranged at an arch ring, an inverted arch, and an arch foot with single layer or multiple layers, and a layer thickness of the flexible energy dissipation component and strength and density of the porous lightweight material can be designed non-uniformly.